/*
 *  Copyright 2009 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.mybatis.generator.codegen.mybatis3.xmlmapper.elements;

import java.util.Iterator;

import org.mybatis.generator.api.IntrospectedColumn;
import org.mybatis.generator.api.dom.xml.Attribute;
import org.mybatis.generator.api.dom.xml.TextElement;
import org.mybatis.generator.api.dom.xml.XmlElement;
import org.mybatis.generator.codegen.mybatis3.MyBatis3FormattingUtilities;

/**
 * 
 * @author Jeff Butler
 * 
 */
public class BaseColumnListElementGenerator extends AbstractXmlElementGenerator {

	public BaseColumnListElementGenerator() {
		super();
	}

	@Override
	public void addElements(XmlElement parentElement) {
		XmlElement answer = new XmlElement("sql"); //$NON-NLS-1$

		answer.addAttribute(new Attribute("id", //$NON-NLS-1$
				introspectedTable.getBaseColumnListId()));

		context.getCommentGenerator().addComment(answer);

		StringBuilder sb = new StringBuilder();
		Iterator<IntrospectedColumn> iter = introspectedTable.getNonBLOBColumns().iterator();
		while (iter.hasNext()) {
			sb.append(MyBatis3FormattingUtilities.getSelectListPhrase(iter.next()));

			if (iter.hasNext()) {
				sb.append(", "); //$NON-NLS-1$
			}

			if (sb.length() > 80) {
				answer.addElement(new TextElement(sb.toString()));
				sb.setLength(0);
			}
		}

		if (sb.length() > 0) {
			answer.addElement((new TextElement(sb.toString())));
		}

		if (context.getPlugins().sqlMapBaseColumnListElementGenerated(answer, introspectedTable)) {
			parentElement.addElement(answer);
		}
	}
}
